Chemical News and Journal of Physical Science, Volume 66Chemical news office., 1892 |
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Pagina 13
... nitrous fumes were evolved , and the sodium nitrite remained undissolved . The acid , with the nitrite , was then poured into about the same bulk of dis- tilled water ; a violent reaction took place , the effer- vescence of the nitrous ...
... nitrous fumes were evolved , and the sodium nitrite remained undissolved . The acid , with the nitrite , was then poured into about the same bulk of dis- tilled water ; a violent reaction took place , the effer- vescence of the nitrous ...
Pagina 24
... nitrous vapour is then directed upon it , when there is an exclusive formation of nitriles . SOURCES . expressed . Comptes Rendus Hebdomadaires des Séances , de l'Académie des Sciences . Vol . cxiv . , No. 25 , June 20 , 1892 ...
... nitrous vapour is then directed upon it , when there is an exclusive formation of nitriles . SOURCES . expressed . Comptes Rendus Hebdomadaires des Séances , de l'Académie des Sciences . Vol . cxiv . , No. 25 , June 20 , 1892 ...
Pagina 25
... nitrous acid , avoiding large excess , and then proceeding exactly according to Volhard's method . Apparatus for Determining Carbonic Acid with an Automatic Afflux of Acid . - Greiner and Friedrichs.- This apparatus cannot be described ...
... nitrous acid , avoiding large excess , and then proceeding exactly according to Volhard's method . Apparatus for Determining Carbonic Acid with an Automatic Afflux of Acid . - Greiner and Friedrichs.- This apparatus cannot be described ...
Pagina 78
... nitrous and nitric acids in the soil has been shown to be due to organisms which have recently been investi- gated by many chemists ; it is possible to transform ammonia into these acids in the laboratory by oxidation CHEMICAL NEWS ...
... nitrous and nitric acids in the soil has been shown to be due to organisms which have recently been investi- gated by many chemists ; it is possible to transform ammonia into these acids in the laboratory by oxidation CHEMICAL NEWS ...
Pagina 84
... nitrous vapours , leaving a residue of palladium and potassium chloride . It is soluble in about three times its weight of cold water and twice its weight of boiling water . Double Chlorides formed by Lithium Chloride and Chlorides of ...
... nitrous vapours , leaving a residue of palladium and potassium chloride . It is soluble in about three times its weight of cold water and twice its weight of boiling water . Double Chlorides formed by Lithium Chloride and Chlorides of ...
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Populaire passages
Pagina 106 - Keep the mixture in a warm place for several days, or until a portion heated to 40° C. deposits no yellow precipitate of ammonium phospho-molybdate. Decant the solution from any sediment, and preserve in glass-stoppered vessels.
Pagina 157 - FOR BREWERS. Being a Practical Guide to the Art of Brewing and Malting. Embracing the Conclusions of Modern Research which bear upon the Practice of Brewing. By HERBERT EDWARDS WRIGHT, MA Second Edition, Enlarged.
Pagina 63 - No single discovery has ever had a more momentous and far-reaching influence on the progress of a science than that law of organic succession which Smith established. At first it served merely to determine the order of the stratified rocks of England. But it soon proved to possess a worldwide value, for it was found to furnish the key to the structure of the whole stratified crust of the earth. It showed that within that crust lie the chronicles of a long history of plant and animal life upon this...
Pagina 143 - The Tannins, a Monograph on their History, Preparation, Properties, Methods of Estimation and Uses of the Vegetable Astringents,
Pagina 130 - The examination will comprise the subjects mentioned in the following nine sections j and every Student will be required to satisfy the examiners in three at least of the sections marked A, B, C, D, E, F...
Pagina 306 - COLOURS, OILS, AND VARNISHES : A PRACTICAL MANUAL. BY GEORGE H. HURST, FCS, Member of the Society of Chemical Industry ; Lecturer on the Technology of Painters' Colours, Oils, and Varnishes, the Municipal Technical School, Manchester.
Pagina 125 - Examinations are held at the end of each course of instruction and at such other periods as may be found necessary. On the results of these examinations the successful candidates are arranged in two classes, first and second. There are also " Honours " examinations for the subjects of the third year, the successful candidates being placed in order of merit.
Pagina 65 - ... circle was driven away into more southern and less ungenial climes. But most memorable of all was the extirpation of the prominent large animals which, before the advent of the ice, had roamed over Europe. The lions...
Pagina 106 - Test the filtrate by renewed digestion and addition of more molybdic solution. Dissolve the precipitate on the filter with ammonia and hot water and wash into a beaker to a bulk of not more than 100 cc. Nearly neutralize with hydrochloric acid, cool, and add magnesia mixture from a burette; add slowly (about 1 drop per second), stirring vigorously. After fifteen minutes add 30 cc. of ammonia solution of density 0.95.
Pagina 65 - ... familiar. Snow fell and glaciers crept as they do to-day. Ice scored and polished rocks exactly as it still does among the Alps and in Norway. There was nothing abnormal in the phenomena, save the scale on which they were manifested. And thus, taking a broad view of the whole subject, we recognize; the catastrophe, while at the same time we see in its progress the operation of those same natural processes which we know to be integral parts of the machinery whereby the surface of the earth is...